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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 1 > Chapter 7 - Friction > A block is placed on a rough floor and a horizontal force F is applied on it.The force of friction f by the floor on the block is measured for different values of F and a graph is plotted between them.

A block is placed on a rough floor and a horizontal force F is applied on it.The force of friction f by the floor on the block is measured for different values of F and a graph is plotted between them.

A car starts from rest on a 1600 m long bridge. The coefficient of friction between the tyre and road is 0.8. The minimum time taken by the car to cross the bridge is